chore(frontend): add generated files/queries to Git (#10281)

## Changes 🏗️

We want to make running the AutoGPT Front-end as easy as possible. For
that, you should be able to run it with the least amount of commands.

We recently added generated queries and types on the Front-end from the
Back-end OpenAPI schema, to make development easier and catch bugs
earlier. However, with the current setup, developers are forced to run
`pnpm generate:api-all` with the Back-end running, which is annoying.

After this PR, the Front-end can be rerun with just `pnpm i & pnpm dev`.

## Checklist 📋

### For code changes

- [x] I have clearly listed my changes in the PR description
- [x] I have made a test plan
- [x] I have tested my changes according to the test plan:
  - [x] Run the Front-end with just `pnpm dev` and it works

---------

Co-authored-by: Abhimanyu Yadav <122007096+Abhi1992002@users.noreply.github.com>

.gitignore

@@ -177,6 +177,3 @@ autogpt_platform/backend/settings.py
 *.ign.*
 .test-contents
 .claude/settings.local.json
-
-# Auto generated client
-autogpt_platform/frontend/src/app/api/__generated__